To examine the residual stress field resulting from stamping process for the lower control arm which is one of chasis components in a car, the explicit finite element analysis is performed for the stamping process by way of the ABAQUS Explicit. A short note on the mass lumping technique and time increment for stability limit is presented. The residual stress is obtained in terms of the Von Mises stress, and other parameters such as equivalent plastic strain, the change of blank thickness, the final configuration of the blank and the spring back effect are also considered. Moreover, discussed is the convergence of the explicit FEM versus the punch speed and the element discretization.
